Remote Position29.01.26
AI SCORE 8.7

Senior Full-Stack Engineer - AI Tools Development

$60K–$96K/year

About the Role

Join Sintra as a Senior Full-Stack Engineer to develop innovative AI tools that empower small businesses. This is a unique opportunity to work remotely while contributing to a team that is revolutionizing how small businesses operate. With over 50,000 businesses relying on our AI solutions, your work will directly impact their success.

What You'll Do

  • Design and implement tools/functions that LLMs can reliably call, ensuring robust error handling and comprehensive documentation.
  • Develop user-friendly interfaces in collaboration with designers, focusing on simplicity for non-technical users.
  • Build retry logic, fallbacks, and self-correction mechanisms to enhance user experience.
  • Instrument applications by adding tracking and logging to measure real impact and iterate based on data.
  • Create background workflows that chain multiple operations together, improving efficiency.
  • Mentor teammates through code reviews and pair programming, raising the engineering bar.

Requirements

  • 4+ years of experience in shipping production full-stack applications.
  • Strong proficiency in Python, Node.js, and React, with a focus on clean architecture.
  • Experience with LLM tool calling, function definitions, and prompt engineering.
  • Solid understanding of how technical decisions affect user experience.
  • Ability to navigate large codebases and comprehend service boundaries.
  • Strong code review skills to catch bugs before they reach production.
  • Comfortable using AI tools to accelerate development.

Nice to Have

  • Experience with FastAPI and microservices architecture.
  • Familiarity with AWS and DevOps tooling such as GitHub Actions and Grafana.

What We Offer

  • Top-of-market salary in Vilnius, ranging from €5,000-8,000/month based on expertise and experience.
  • Health insurance and gym membership with personal trainer options.
  • Team lunches to foster collaboration and camaraderie.
  • Relocation bonus and support to ensure a smooth transition to Vilnius.
  • Meaningful equity, allowing you to own part of what you build.

By joining Sintra, you will be part of a fast-moving team that values ownership and creativity. We ship daily and believe that work should be enjoyable. If you are ready to make a significant impact in the world of AI for small businesses, apply now!

Language Requirements
EnglishB2
BasicIntermediateAdvancedNative
Why This Job8.7 of 10

This role offers a unique opportunity to work in a fast-paced environment focused on AI tools for small businesses. Enjoy competitive compensation and a supportive team culture.

Salary Range
Required
0/1
Optional
0/1
Bonus
0/1

Who Will Succeed Here

Proficiency in Python and FastAPI for developing scalable backend services, with a strong understanding of asynchronous programming and RESTful API design.

Ability to work autonomously in a remote setting, demonstrating self-discipline and effective time management to meet project deadlines while collaborating asynchronously with cross-functional teams.

Experience with CI/CD practices using GitHub Actions, ensuring smooth deployments and integration pipelines, combined with a proactive mindset towards debugging and optimizing applications.

Learning Resources

FastAPI Documentationguide

Career Path

Senior Full-Stack Engineer - AI Tools Development(Now)Lead Full-Stack Engineer(1-2 years)Engineering Manager or Technical Architect(3-5 years)

Market Overview

Market Size 2024
$20B
Annual Growth
12.5%
AI Adoption
75%
Investment
+150%
Labour Demand
+35%
Avg Salary
$130K

Skills & Requirements

Required
PythonNode.jsReact
Growing in Demand
Machine LearningData EngineeringDevOps
Declining
jQueryPHP

Domain Trends

Rise of AI in Development
AI tools are increasingly being integrated into software development, with 75% of companies adopting AI-driven solutions to enhance productivity and efficiency.
Shift to Serverless Architectures
The adoption of serverless architectures is growing, with a 40% increase in usage among developers to reduce infrastructure management overhead.
Demand for Real-Time Data Processing
The need for real-time data processing is surging, with a 50% increase in job postings requiring skills related to FastAPI and Grafana for monitoring and analytics.

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